Loose-leaf construction



July 13, 1943. v. HAVEL v 2,324,259

LOOSE LEAF CONSTRUCTION Filed Sept.` '7, 1942 2 Sheets-Sheet l 27E-Men@ Kaff@ 46x65 July 13, 1943. v. HAvEL 2,324,259

LOOSE LEAF CONSTRUCTION Filed Sept. '7, 1942 2 Sheets-Sheet 2 e @4 M jf 24am@ Patented July 13, 1943 LOOSE-LEAF CONSTRUCTION Victor Havel, Chicago, Ill., assigner to L. L. Paper Products, Inc., Chicago, Ill., a, corporation of Illinois Application September 7, 1942, Serial No: 457,627

4 Claims.

This invention relates to a paper loose leaf construction.

Among the objects of my invention is to provide a calendar made entirely out of paper, Bristol board, cardboard, pasteboard or the like into which leaves may be freely inserted, turned and withdrawn and which will hold said leaves firmly and prevent accidental displacement. Another object is to create a calendar having face and leaf holding elements formed from the face itself without additional or extraneous materials. An other object is to supply a calendar economical of manufacture, made of materials procurable during times of scarcity or war, which will function satisfactorily and be lasting in wear and such other objects, advantages and capabilities as Will later more fully appear and which are inherently possessed by my invention.

While I have shown in 'the accompanying drawings preferred embodiments of my invention, yet I wish it understood that the same are susceptible of modification and change without departing from the spirit of my invention.

Referring to the drawings, Fig. 1 is a perspective View of one form of my calendar; Fig. 2 is a top plan View of the leaf Fig. 3 is a top plan view of one form of my sheet; Fig. 4 is a detailed perspective View of the single strap; Fig. 5 is a broken perspective View of my calendar showing in detail the straps with a plurality of scores, and Fig. 6 is a similar view showing in detail looped straps.

One embodiment selected to illustrate my invention comprises a sheet II of Bristol board, cardboard, pasteboard or other firm paper material.

A pair of spaced longitudinally extending cuts I8 and I9 form between them a strap 20. In Fig. 1, I have shown a pair of laterally spaced straps 29, and in Fig. 4 I have provided a single strap Eil of greater lateral extent located substantially in the center. I may provide any desired number of straps without departing from the spirit of my invention.

Said sheet II has a lateral score Si] extending between each set of cuts I8 and I9 at their upper ends. Said sheet II also has a lateral score 6I extending between each set of cuts I B and I9 at their lower ends.

A slit 92 extends laterally from one of the side edges E3 of sheet II to opening 35 below strap 20, continuing laterally between other openings 35 provided and then extending laterally to the opposite side edge 64 of sheet II.

Above slit 62 and extending inwardly from edge 53 to cut I8, and from edge 64 to cut I9 and between inner cuts I8 and I9 are upper tongues 65. Below cut 62 and extending inwardly from edge 63 to' cut I8 and from edge 64 to cut I9 and between inner cuts I8 and I9 are lower tongues 66. l

For use, straps 20 are bent inwardly on scores E0 and BI, Lower tongues 66 are positioned to overlap with upper tongues 65 so that straps 20, bent outwardly onv scores 2l, extend diagonally upwardly.

In this open position straps 20 (and strap 50) are adapted to receive, permit turning and permit proper unloading of cut sheets of paper 25.

The sheets of paper 25 have at their inner edges 2'6 a cut 21 extending through arms 2S on either side thereof to a slot 29. The cut 2l' permits moving of the sheet 25 until the strap 20 is within the slot 29. Accidental removal is prevented for practical purposes by arms 28 engaging straps 20.

Additional longitudinal scores 30 may be provided on straps 20 and 59, spaced longitudinally from score 2l to permit straps 20 and 59 to be bent outwardly thereon for the accommodation of desired thicknesses of paper sheets loaded on said straps. See Fig. 5.

My straps 2D and 50 may be formed without any scores 2I or 30 thereon, curving between scores and 6I to form a loop, as shown in Fig. 6.

The degree of the overlap of tongues and 66 and the positioning of score 2i or scores 3D determines the height and angle of the straps 2U and 5U.

When I desire to use my construction for a calendar, I prefer the form shown in Fig. 1, wherein lower tongues 66 overlap upper tongues 65 less than half way, and score 2| on each strap 20 is positioned below the center of strap 2S, This construction provides an angle just short of a right angle and particularly adapted to hold the leaves 25 of the calendar.

It is of course within the contemplation of my invention that upper tongues 65 may overlap lower tongues G instead of tongues 96 overlapping tongues G5, without departing from the spirit of my invention, and that said tongues may overlap each other to any desired degree,

The tongues may be attached together at their overlapping portions by any suitable means, such as adhesives, pins or the like. While I prefer to attach sheet lI to a back S1 by adhesives or any other suitable means, yet I may omit the back entirely.

Sheet Il with its upper' portion 58 and its lower portion 69 may be of a size to cover the back E?, or it may be abbreviated in the form of a stub construction to be attached to a larger back 6l.

Ordinarily rny construction is to be used for calendars and is constructed with the longitudinal axis as predominating. My construction may, l'iowever, be turned at right angles on a lateral axis for use as a desk calendar pad.

Having thus described my invention, I ciaim:

l. A loose leaf calendar construction comprising a sheet of paper, said sheet having laterally spaced pairs of spaced cuts extending longitudinally to form straps, said sheet having a slit extending laterally from each side edge of said sheet to the outer of each of said spaced cuts and between the inner of each of said spaced cuts to form upper and lower' tongues on said sheet, said straps having lateral scores at their upper and lower junctures with said sheet, and bent inwardly thereon, said straps also having a score thercaeross, and bent outwardly thereon, said lower tongues overlap-ping said upper tongues for extending said straps diagonally upwardly for the reception, withdrawal and turning thereon of sheets, and a back, said sheet attached to said back.

2. A loose leaf construction comprising a sheet of paper, said sheet having at least one pair of spaced outs to form a strap and an opening therebeneath, said sheet having a slit extending from opposite edges of said sheet to and between cach opening provided to forrn upper and lower tongues on said sheet, each strap provided having scores at its upper and lower junctures with said sheet and bent inwardly thereon, each strap having at least one score thereacross and bent outwardy thereon, said upper and lower tongues at least partially overlapped for extending each strap provided diagonally upwardly for the re ception, withdrawal and turning thereon of sheets, and a back, said sheet attached to said back.

3. A loose leaf construction comprising a sheet having at least one pair of spaced cuts to form a strap, and an opening therebeneath, said sheet having a slit extending from opposite edges of said sheet to and between each opening provided to form upper and lower tongues on said sheet, each strap provided having scores at its upper and lower junotures with said sheet and bent inwardly thereon, said upper and lower tongues at least partially overlapped for extending each strap provided diagonally upwardly for the reception, withdrawal and turning thereon of sheets, and a back, said sheet attached to said back.

4. A loose leaf construction comprising a sheet having at least one pair' of spaced cuts to form a strap, and an opening therebeneath, said sheet having a slit extending from opposite edges of said sheet to and between each opening provided to form upper and lower tongues on said sheet, each strap provided having scores at its upper and lower junotures with said sheet and bent inwardly thereon, said upper and lower tongues at? tached in at least partially overlapped position for extending each strap provided diagonally upwardly for the reception, withdrawal and turn ing thereon of sheets.

VCTOR HAVEL. 

